轮南古潜山碳酸盐岩储集层裂缝分布分形特征  

Fractal Geometric Characters of Fractural Distribution in Lunnan Ancient Buried Hill Carbonate Reservoir

作　　者：王自明[1] 宋文杰[2] 杨新华[3] 黄川[4] 元军[4] 李兼 杜志敏[5] 

机构地区：[1]中国石油塔里木油田分公司博士后工作站,新疆库尔勒841000 [2]中国石油塔里木油田分公司,新疆库尔勒841000 [3]中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒841000 [4]四川石油管理局地调处石油三大队,成都611430 [5]西南石油学院,成都610500

出　　处：《新疆石油地质》2005年第3期238-241,共4页Xinjiang Petroleum Geology

摘　　要：针对裂缝整体分布规律这一制约碳酸盐岩储集层三维地质建模的瓶颈难题,结合实地露头考察,描述和分析了轮南古潜山碳酸盐岩储集层裂缝形态和分布的自相似特征,建立了岩体裂缝分形统计方法和分维数计算方法,在对轮南古潜山岩体不同尺度网格分形统计的基础上作出了各岩体样本裂缝分布的分形曲线,最终得到了预测轮南古潜山岩体裂缝分布的分形定量公式,为建立轮南古潜山碳酸盐岩储集层渗流空间模型和渗透率参数模型奠定了坚实的基础。The 3D geologic modeling for Lunnan buried hill carbonate reservoir is based on the fractural distribution and the outcrop survey.The self-similar feature of the fractural style and distribution in this carbonate reservoir is described and analyzed.The procedure of the fractal geometric statistics of the fracture distribution and the calculation method of the fractal dimension are established.The fractal curves of the fractural distribution of the outcrop specimens are plotted based on the fractal geometric statistics of the buried hill body in different grid sizes.Finally,the quantitative fractal geometric formula for predicting the fractural distribution of the body is provided,which could be as a solid base for the seepage space modeling and the permeability geologic modeling in this carbonate reservoir.

关 键 词：轮南古潜山 碳酸盐岩储集层 裂缝 分布规律 自相似性 分形特征 地质模型 

分 类 号：P618.130.21[天文地球—矿床学]